Hi Ira, > I am trying to implement regex search in file
Why are you using Lucene for regular expression search? You can implement this by simply using java.util.regex package? Regards, Tomoko 2018年8月1日(水) 0:18 Gordin, Ira <ira.gor...@sap.com>: > Hi Uwe, > > I am trying to implement regex search in file the same as in editors, in > Notepad++ for example. > > Thanks, > Ira > > -----Original Message----- > From: Uwe Schindler <u...@thetaphi.de> > Sent: Tuesday, July 31, 2018 6:12 PM > To: java-user@lucene.apache.org > Subject: RE: Search in lines, so need to index lines? > > Hi, > > you need to create your own tokenizer that splits tokens on \n or \r. > Instead of using WhitespaceTokenizer, you can use: > > Tokenizer tok = CharTokenizer. fromSeparatorCharPredicate(ch -> ch=='\r' > || ch=='\n'); > > But I would first think of how to implement the whole thing correctly. > Using a regular expression as "default" query is slow and does not look > correct. What are you trying to do? > > Uwe > > ----- > Uwe Schindler > Achterdiek 19, D-28357 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > -----Original Message----- > > From: Gordin, Ira <ira.gor...@sap.com> > > Sent: Tuesday, July 31, 2018 4:08 PM > > To: java-user@lucene.apache.org > > Subject: Search in lines, so need to index lines? > > > > Hi all, > > > > I understand Lucene knows to find query matches in tokens. For example > if I > > use WhiteSpaceTokenizer and I am searching with /.*nice day.*/ regular > > expression, I'll always find nothing. Am I correct? > > In my project I need to find matches inside lines and not inside words, > so I > > am considering to tokenize lines. How I should to implement this idea? > > I'll really appriciate you have more ideas/implementations. > > > > Thanks in advance, > > Ira > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > -- Tomoko Uchida
